I'm a newbie user. I've installed the news system in my local PC and everything works fine, but i want to change the look and appearance of my news.

First of all i want to put in mu home page a list with the last 5 news, but only with the title and the summary, then when a user clicks on the title link open a new page with the entire news. I've tested changing the templates but i didn't get anything.

In the other hand, i want to change the css styles of mu news. What is the file where the styles are contained? Can i insert html in the templates form? If the answer is yes, how i link my styles that i use in the templates.